This was a fun project.  Client was a college student who needed to depict a parking lot full of only expensive cars.  I replaced the sky, removed power lines, removed all cars from the lot, rebuilt all windows and doors, drive thru panel, and cleaned up pavement.  I then found cars that matched the proper angles, color corrected them to reflect the proper lighting to match the scene, and added realistic reflections in the paint of the cars.  Client was very pleased!!